Spring Equinox 2017

In 2017 spring will begin on Monday 20th of March at 10:28am UTC, and it will end on 21st of June with the beginning of summer.
The beginning of seasons is conventionally established by particular positions of the Earth during its orbit around the Sun. So the spring equinox occurs when the plane of Earth’s Equator passes the center of the Sun. At that instant, the tilt of Earth’s axis neither inclines away from nor towards the Sun.
When that occurs, the daytime and night are of approximately equal duration. The word equinox comes from this definition, derived from the Latin aequus (equal) and nox, noctis (night).